docs: def get_subset_ids(path):
          """ Return a list with ids of all available subsets (based on existing csv-files). """
          all = []
  
          for path in glob.glob(os.path.join(path, '*.tsv')):
              file_name = os.path.split(path)[1]
              basename = os.path.splitext(file_name)[0]
              all.append(basename)
  
          return all